GTD Audio 4x800 Adjustable Channels UHF Diversity Wireless Cordless Lavalier/Lapel/Headset Microphone Mic System 400fts (4 Body Packs)

I have purchased at least 10 of the G-787 units with bodypack transmitters (with lavs) and a scattering of handheld mics. Without exception, every single piece of equipment has worked on arrival. The setup is very straightforward. (BE SURE TO ORDER THE RIGHT FREQUENCY FOR YOUR LOCATION.) I am a Technical Director for Theatre. Our production of Mama Mia used 27 wireless mics (all GTD). Through 9 shows and a (very) memorable tech week, we did not have a single failure. (We do keep spares on hand just in case, and occasionally, we do have a bodypack die.) The most common issue we've found is the solder joint inside the bodypack where the mini-xlr is connected to the mainboard. It's an easy fix, but not something you can do in 2 minutes. We do not use the lav mics supplied with the units. They're okay but not for musical theatre. They are okay for lectures and such. We use the single hook over-ear mics that run $13.95 each. We usually set the bodypacks to -10 db when we use them. For their price, these are, in my humble opinion of course, the best wireless mic systems available. Yes, you can spend (a lot) more, but the gain in sound quality is probably not worth it, unless you have a very well-funded production that demands and can afford the very highest quality. Are there any cons? The only complaint I have is that there is no antenna combiner available (as far as I know). The antennas are attached to the back of these units - 4 antennas per unit. Once you get more than, say, 8 channels with 8 antennas, things can get pretty crowded in the back of the rack. Also, this is not the ideal location for the antennas, especially if you are reaching long distances. These mics work great out to about 250', which I rarely see, but after 250', the reception can start getting a lot of dropouts. I've worked with the crew at GTD for 10+ years now and have always received prompt replies to any inquiries I've made.

These are not senheiser's or shure's but at this price point they are an excellent solution. I purchased 4 units (16 microphones) and very happy with the result. My wife runs a small youth musical theater and for the last few years we have been renting wireless mic's from an audio rental outfit. The mic's we got were either senheisers and shures, so I know the quality of those expensive solutions. The issues we experienced with the rental microphones is that the company we rent from just had very poor quality control. The wireless units were always dirty. not looked after very well and the transmitter packs were always broken (antennas falling off or disconnected or some other battery problem). After the last rental where we received 16 mic's we only had 4 working mic's in the set and after dealing with receiver issues because half the receivers were missing antennae's we decided to invest in our own wireless mic system. Obviously at the price point we were able to afford we were not going to be able to get senheiser's or shure's. After a lot of online research of systems in our price point I settled on these. While there was not a lot of information online, the little I could find only had favorable things to say. I took a chance and extremely happy with the result. The sound is clear and the transmitters work extremely well with no cutting out once they are set on a clear channel. Finding clear channels was a challenge and my first attempt was just plug and play and I had a lot of cutting in and out. After I read the instructions and learned how to find clear channels I was able to get all 16 mic's working without interference.Overall I am extremely happy with this solution and would highly recommend it to any small aspiring theater/musical theater groups. While it did come with a set of headset microphones I opted to purchase the GTD over the ear microphones. Search for that product using ASIN B008FTJ4XW.

I'm the technical director for the local middle and high school theater programs.I've purchased a total of 8 sets of these mics for the two different theater programs. I have several thoughts.The overall value is good. The cost per unit is quite low, especially for units with selectable frequency ranges. (Tip: if possible, definitely allow the receiver to auto select a frequency range. Try various groups to see which is most open. There may be times when your only option is to manually select, but try anyway.)It's nice to be able to have 16 channels of receivers in a single 4u rack case. That makes moving into and out of the theater nice or simplifies installation.I highly recommend having the receivers or antennas near the stage. In one scene the was a wall with metal studs between the belt pack and receiver which was solved with an extension cable and taping the antenna to a wall around the corner. Fancy? Nope, but it worked.I didn't expect to use the elements that came with the system. Get better over the ear elements. The GTD ones were much better than they ones they include with this system, but any other compatible brand is an upgrade. At this point I figure I can afford new elements each season and still have a ton of cash over more expensive solutions.DO NOT attempt to use elements which are compatible with Shure, AKG, or Sennheiser as they require bias voltage from the pack. The GTD packs are only connected to two prongs (I've repaired a couple of packs).The kicker: RF dropouts from overheating. It took a long time to figure out why tech week went so well and the performance didn't. The difference is the temperature. The actors get hotter in a full house with poor AC, and as a result the transmitters start dropping. Our solution was to wrap the transmitter in a latex covering (available in bulk for this purpose from condom suppliers) and to put a small, home made freezer pack inside. This resolved our dropout issue.Despite that, we also had several packs fail. I attempted to contact GTD support through their website and did not see a reply. Now that theater season is over I intend to contact them again about replacements under warranty. The good news is that the replacements I purchased directly arrived quickly and are reasonably priced, but I'm still frustrated.One of 8 receivers appears to have a dead channel. I need to troubleshoot, and this demonstrates the issue with a denser rack.Overall, if I had more money I might buy a different system. But these are better than the ones we've tried from Vocopro (couldn't change frequencies; same dropout issues which I now suspect are due to overheating) or Pyle (unit won't power on at all).